Search Results - "Guezennec, Anne"

Recovery of metals in a double-stage continuous bioreactor for acidic bioleaching of printed circuit boards (PCBs) by Hubau, Agathe, Minier, Michel, Chagnes, Alexandre, Joulian, Catherine, Silvente, Charline, Guezennec, Anne-Gwenaëlle

“…•Bioleaching of spent PCBs was performed in a reactor operated in batch mode.•This was compared to PCBs bioleaching with a continuous double-stage…”
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LCA as a support to more sustainable tailings management: critical review, lessons learnt and potential way forward by Beylot, Antoine, Bodénan, Françoise, Guezennec, Anne-Gwénaëlle, Muller, Stéphanie

“…•Comprehensive, critical, review of tailings management in LCA•Discusses LCA modelling (LCI, uncertainty, etc.) and key results obtained•Discusses how LCA may…”
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Recycling-oriented methodology to sample and characterize the metal composition of waste Printed Circuit Boards by Hubau, Agathe, Chagnes, Alexandre, Minier, Michel, Touzé, Solène, Chapron, Simon, Guezennec, Anne-Gwénaëlle

“…•This study presents sampling procedure to obtain spent PCBs reproducible samples.•A methodology with aqua regia digestion was used to determine metal…”
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Bioleaching of polymetallic sulphidic mining residues: influence of increasing solid concentration on microbial community dynamics and metal dissolution by Joulian, Catherine, Hubau, Agathe, Pino-Herrera, Douglas, Guezennec, Anne-Gwénaëlle

“…Within the European research project NEMO, a bioleaching strategy was developed for efficient metal extraction from bioleach residue currently heap-leached at…”
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Bioleaching of E-Waste: Influence of Printed Circuit Boards on the Activity of Acidophilic Iron-Oxidizing Bacteria by Anaya-Garzon, Juan, Hubau, Agathe, Joulian, Catherine, Guezennec, Anne-Gwénaëlle

“…Bioleaching is a promising strategy to recover valuable metals from spent printed circuit boards (PCBs). The performance of the process is catalyzed by…”
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Bioleaching to reprocess sulfidic polymetallic primary mining residues: Determination of metal leaching mechanisms by Hubau, Agathe, Guezennec, Anne-Gwénaëlle, Joulian, Catherine, Falagán, Carmen, Dew, David, Hudson-Edwards, Karen A.

“…The mining of non-ferrous metals produces the largest volume of metal-containing, extractive waste in Europe, and about 29% of all the waste produced in the…”
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Extended validation of an expression to predict ORP and iron chemistry: Application to complex solutions generated during the acidic leaching or bioleaching of printed circuit boards by Yue, Guikuan, Guezennec, Anne-Gwénaëlle, Asselin, Edouard

“…The expression developed in our previous work to predict the redox potential of the quaternary H2SO4-Fe2(SO4)3-FeSO4-H2O system can still be used to predict…”
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Fe(III) bioreduction kinetics in anaerobic batch and continuous stirred tank reactors with acidophilic bacteria relevant for bioleaching of limonitic laterites by Hubau, Agathe, Joulian, Catherine, Tris, Hafida, Pino-Herrera, Douglas, Becquet, Camille, Guezennec, Anne-Gwénaëlle

“…In the framework of the H2020 project CROCODILE, the recovery of Co from oxidized ores by reductive bioleaching has been studied. The objective was to reduce…”
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Continuous production of a biogenic ferric iron lixiviant for the bioleaching of printed circuit boards (PCBs) by Hubau, Agathe, Minier, Michel, Chagnes, Alexandre, Joulian, Catherine, Perez, Cédric, Guezennec, Anne-Gwenaëlle

“…Ferric iron is a low-cost oxidant frequently used in hydrometallurgy and is particularly suitable to leach various metals from printed circuit boards (PCBs)…”
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Bioleaching of pyritic coal wastes: bioprospecting and efficiency of selected consortia by Joulian, Catherine, Fonti, Viviana, Chapron, Simon, Bryan, Christopher G., Guezennec, Anne-Gwénaëlle

“…Pyrite-bearing coal wastes are responsible of the formation of acid mine drainage (AMD), and their management to mitigate environmental impacts is a challenge…”
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CFD numerical simulation of particle suspension and hydromechanical stress in various designs of multi-stage bioleaching reactors by Chéron, Jonathan, Loubière, Céline, Delaunay, Stéphane, Guezennec, Anne-Gwénaëlle, Olmos, Eric

“…The performance of bioleaching stirred tank reactors (STR) is related to the homogeneity of biomass, substrates and dissolved gases. This work was focused on…”
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Co-processing of sulfidic mining wastes and metal-rich post-consumer wastes by biohydrometallurgy by Guezennec, Anne-Gwénaëlle, Bru, Kathy, Jacob, Jérôme, d’Hugues, Patrick

“…•Bioleaching of sulfidic mining wastes enables to produce lixiviant solution that can be used further for e-wastes leaching.•Biological re-oxidation of iron…”
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CO2 mass transfer in bioleaching reactors: CO2 enrichment applied to a complex copper concentrate by Guezennec, Anne-Gwénaëlle, Joulian, Catherine, Delort, Claire, Bodénan, Françoise, Hedrich, Sabrina, D'hugues, Patrick

“…In bioleaching processes using autotrophic bacteria, carbon dioxide (CO2) is the carbon source for the growth of the microorganisms and its availability is…”
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Influence of the Nutrient Medium Composition During the Bioleaching of Polymetallic Sulfidic Mining Residues by Hubau, Agathe, Pino-Herrera, Douglas O., Falagán, Carmen, Hudson-Edwards, Karen A., Joulian, Catherine, Guezennec, Anne-Gwenaëlle

“…Although bioleaching, i.e. the extraction of metals using microorganisms, remains a niche application, it has garnered growing interest as an ecologically…”
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Dissemination of acrylamide monomer from polyacrylamide-based flocculant use—sand and gravel quarry case study by Touzé, Solene, Guerin, Valérie, Guezennec, Anne-Gwenaëlle, Binet, Stéphane, Togola, Anne

“…Aggregate quarries play a major role in land settlement. However, like all industrial operations, they can have impacts on the environment, notably due to the…”
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Influence of dissolved oxygen on the bioleaching efficiency under oxygen enriched atmosphere by Guezennec, Anne-Gwénaëlle, Joulian, C., Jacob, J., Archane, A., Ibarra, D., de Buyer, R., Bodénan, F., d’Hugues, P.

“…•Dissolved oxygen (DO) concentration was varied from 4 to 17ppm using O2 enriched gas.•The oxidation rate increased with DO concentration until 13ppm.•The…”
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sensitive analytical procedure for monitoring acrylamide in environmental water samples by offline SPE–UPLC/MS/MS by Togola, Anne, Coureau, Charlotte, Guezennec, Anne-Gwenaëlle, Touzé, Solène

“…The presence of acrylamide in natural systems is of concern from both environmental and health points of view. We developed an accurate and robust analytical…”
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Hydrometallurgical Processing of Chalcopyrite by Attrition-Aided Leaching by Dakkoune, Amine, Bourgeois, Florent, Po, Adeline, Joulian, Catherine, Hubau, Agathe, Touzé, Solène, Julcour, Carine, Guezennec, Anne-Gwénaëlle, Cassayre, Laurent

“…We report the investigation of a chalcopyrite leaching process that implements millimeter-sized glass beads that are stirred in the leach reactor to combine…”
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Arsenic in Marina Sediments from the Mediterranean Coast: Speciation in the Solid Phase and Occurrence of Thioarsenates by Mamindy-Pajany, Yannick, Bataillard, Philippe, Séby, Fabienne, Crouzet, Catherine, Moulin, Anne, Guezennec, Anne-Gwenaëlle, Hurel, Charlotte, Marmier, Nicolas, Battaglia-Brunet, Fabienne

“…Arsenic speciation was determined in marina sediments of the French Mediterranean coast. The sediment from L′Estaque marina was highly impacted by both…”
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Adipocyte differentiation of multipotent cells established from human adipose tissue by Rodriguez, Anne-Marie, Elabd, Christian, Delteil, Frédéric, Astier, Julien, Vernochet, Cécile, Saint-Marc, Perla, Guesnet, Joëlle, Guezennec, Anne, Amri, Ez-Zoubir, Dani, Christian, Ailhaud, Gérard

“…In this study multipotent adipose-derived stem cells isolated from human adipose tissue (hMADS cells) were shown to differentiate into adipose cells in…”
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